Two-row cultivator.



PATENTED MAY 2, 1905.

F. E. PEARSON.

TWO ROW UULTIVATOR.

APPLIOATION FILED 00T.10,190.

3 SHEETS-SHEET 1.

ll llllllllllmlll IIII PATENTE D MAY 2, 1905.

F. E. PEARSON.

TWO ROW CULTIVATOE. APPLICATION FILED OOT.10,1904.'

3 SHEETS-SHEET 2.

PATENTED MAY 2, 1905.

P. E. PEARSON. TWO ROW UULTIVATOR.

APPLICATION FILED 0OT.10,1904.

3 SHEETS-SHEET 3.

Nirn STATES Patented May 2, 1905.

FRANK E. PEARSON, OF ROCKFORD, ILLINOIS.

TWO-ROW CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 789,104, dated. May 2,1905.

Application filed October 10,1904. Serial No. 227,882.

To all whom, it may concern:

Be it known that I, FRANx E. PEARSON, a citizen of the United States,residing at Rockford, in the county of Winnebago and State of Illinois,have invented Certain new and useful Improvements in Two-RowCultivators, of which the following is a specification.

This invention relates'to improvements in two-row cultivators in whicheach beam is adj usted as to working depth independent of the others andin which all beams are raised and lowered by the movement of a singlelever.

This invention further relates to the attachment of the three-horseneck-yoke to the main frame.

In the accompanying drawings, Figure 1 is a plan view of myimprovements. Fig. 2 is a side elevation. Fig. 3 is a side elevationwith the beams raised. Fig. 4 is a plan view of the forward end of thepoles. Fig. 5 is a section on dotted line a, Fig. 4. Fig. 6 is anisometrical representation of the oscillating rods for raising thebeams.

The main frames consist of the two longitudinal angle-bars 1 and 2, heldseparated by the cross-bars 3, 4,5, and 6. The four shovel-supportingbeams 7, 8, 9, and 10 have the usual connection with the angle-bar 2. Arod 11 is supported by links 12 and 13, pivotally connected to thecross-bars 4 and 5.

A quadrant 14, formed with two notches l5 and 16, is rigidly connectedto the angle-bar 1, and a hand-lever 17 has a pivotal connection Withthe quadrant 14 and is provided with the usual thumb-lever and dogengagement with the quadrant. Two links 18 have "one end pivotallyconnected to the hand-lever 17 and their other ends pivotally connectedto the rod 11, and by means of this hand-lever the rod 11 can be rockedon its linked support and held in its two extended positions. This rodsupports four arms 19, 20, 21, and 22 in a pivotal manner, which dependfrom the rod, and each has two perforations in its free end.

The angle-bar 1 supports four toothed quadrants 23, 24, 25, and 26, andfour hand-levers 27 28, 29, and 30 are provided for the quadrants, onefor each, and each has an extension turned at right angles to the lengthof the lever and perforated. Each of the hand-levers 27 28, 29, and 30is provided with the usual thumb lever and dog connection with itstoothed quadrant.

A rock-shaft 31 is pivotally supported by the cross-bars 3 and 4 forwardof the rod 11 and has an arm 32 rigidly connected to it. This arm has alink connection with the beam 7. An arm 33 also has a fixed connectionwith the rock-shaft 31, and its free end has a connection with the arm19 by the link 34. This arm 19 has a connection with the short arm ofthe hand-lever 27 by the link 35.

Upon the rock-shaft 31 is loosely mounted a double lever comprising thearms 36 and 37. The arm 36 has a link connection with the beam 8, andthe arm 37 has a connection by the link 38 with the arm 20, dependingfrom the rod 11. A link 39 forms a connection between the arm and theshort arm of the hand-lever 28. By means of the hand-lever 27 therock-shaft is oscillated, and by reason of the arm 32 having aconnection with the beam 7 the beam 7 will be raised or lowered and heldin its adjusted position. By means of the hand-lever 28 the double leveris oscillated on the rock-shaft, which through its linked connectionwith the beam 8 the beam can be raised and lowered and held in itsadjusted position.

A rock-shaft 40 is pivotally supported by the cross-bars 5 and 6 forwardof the rod 11 and has an arm 41 rigidly connected to it. This arm has aconnection with the beam 10. An arm 42 also has a fixed connection withthe rock-shaft 40, and its free end has a connection with the arm 22 bythe link 43. This arm 22 has a connection with the short arm of thehand-lever by the link 44.

Upon the rock-shaft is loosely mounted a double lever comprising thearms 45 and 46. The arm 45 has a link connection with the beam 8, andthe arm 46 has a connection by the link 47 with the arm 21, dependingfrom the rod 11. A link 48 forms a connection between the arm 21 and theshort arm of the hand-lever 29. By means of the handlever 30 therock-shaft is oscillated, and by reason of the arm 41 having aconnection with the beam 10 the beam '10 will be raised or lowered andheld in its adjusted position. By

means of the hand-lever 29 the double lever is oscillated on therock-shaft, which through its linked connection with the beam 9 the beamcan be raised and lowered and held in its adjusted position.

Without changing the adjustments of the hand-levers 27, 28, 29, and 30all of the beams can be raised by means of the hand-lever 17, which willrock the rod 11 rearward and downward, and as the arms 19, 20, 21, and22 are suspended from this rod they will be carried with it, and as thefree ends of the arms are guided by their connection with theliftinglevers 27, 28, 29, and 30 it will be seen that the arms 19, 20,21, and 22 will be rocked rearward, thereby rocking the arms 323 36, 41,and 45 upward, and consequently raising all the beams in unison, whichcan be held elevated by the dog of the lifting-lever engaging the notch16 of the quadrant 14. By moving the hand-lever 17 forward all the beamswill fall and the lever may be locked in the notch 15 of the quadrant14.

To each end of the rod 11 is connected a coiled spring 49. The otherends of the springs have a connection with the brackets 50, dependingfromthe angle-bar 1. The action of these springs is to assist in raisingthe beams, and when the hand-lever 17 is locked in its forward positionthe influence of the springs the angle-bar 2. In use the center horseoccupies the space between the shafts or poles 53 and one horse islocated outside of each of the shafts or poles.

I claim as my invention 1. In a two-row cultivator, the combination of amain frame, four beams supported by the main frame, links pivotallyconnectedto the frame and capable of a swinging movement, a rodsupported by the links, connections between the rod and the beams, and ahand-lever for rocking the links. 7

2. In a two-row cultivator, the combination of a main frame, four beamssupported by the main frame, a rod, links pivotally connecting the rodwith the main frame, a hand-lever for rocking the rod, two rock-shaftssupported by the main frame, two beams having a connection with eachrock-shaft, a connection between each rock-shaft and the rod, and ahandlever for each beam.

3. In a two-row cultivator, the combination of a main frame, four beamssupported by the main frame, a rod, links pivotally connecting the rodwith the main frame, a hand-lever for rocking the rod, two rock-shaftssupported by the main frame, each rock-shaft having a connection with abeam, a bell crank arm loosely mounted on each rock-shaft and eachhaving a connection with a beam, four bellcrank arms loosely mounted onthe rod, a connection between two of the bell-crank arms on the rod andthe rock-shafts, a connection between the other two bell-crank arms onthe rod and the bell-crank arms on the rockshafts, and a hand-leverhaving a connection with each of the bell-crank arms mounted on the rod.

FRANK E. PEARSON. Witnesses:

A. O. BEHEL,

E. BEHEL.

